Genie Intellicode Troubleshooting?

I have a Genie Intellicode garage opener. I am trying to program the remotes with no results. The directions say to press the learn on and while the learning indicator light is blinking press the remote on 3 times. This is not work and I have tried two different remotes and batteries. Is there a way to troubleshoot which part is not working? Right now the learning indicator does blink when I press the on.